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Invention Grant
US07872618B2 Control circuit for electronic devices, electronic circuit, electro-optical apparatus, driving method for electro-optical apparatus, electronic system, and control method for electronic devices 有权
电子装置用控制电路，电子电路，电光装置，电光装置的驱动方法，电子系统及电子装置的控制方法

  • Patent Title: Control circuit for electronic devices, electronic circuit, electro-optical apparatus, driving method for electro-optical apparatus, electronic system, and control method for electronic devices
  • Patent Title (中): 电子装置用控制电路，电子电路，电光装置，电光装置的驱动方法，电子系统及电子装置的控制方法
  • Application No.: US11797467
    Application Date: 2007-05-03
  • Publication No.: US07872618B2
    Publication Date: 2011-01-18
  • Inventor: Tadashi Yamada
  • Applicant: Tadashi Yamada
  • Applicant Address: JP Tokyo
  • Assignee: Seiko Epson Corporation
  • Current Assignee: Seiko Epson Corporation
  • Current Assignee Address: JP Tokyo
  • Agency: Oliff & Berridge, PLC
  • Priority: JP2002-122811 20020424; JP2003-116367 20030421
  • Main IPC: G09G3/30
  • IPC: G09G3/30
Control circuit for electronic devices, electronic circuit, electro-optical apparatus, driving method for electro-optical apparatus, electronic system, and control method for electronic devices
Abstract:
A data-line drive circuit controls a current value of a control signal in every cycle T1 based on upper 8-bit digital data DAB of digital data In, and performs pulse-width control in a cycle T2 based on lower 2-bit digital data SUB of the digital data In for the portion which is D/A-converted based on the same digital data of the control signal. It is thus possible to provide an electronic circuit suitable to inhibit a variation in the luminance so as to control the luminance levels of pixels with high precision.
Abstract(Chinese):

数据线驱动电路基于数字数据In的高8位数字数据DAB来控制每个周期T1中的控制信号的当前值，并且基于较低的2位数字数据在循环T2中执行脉冲宽度控制 基于与控制信号相同的数字数据进行D / A转换的部分的数字数据In的SUB。 因此，可以提供适合于抑制亮度变化的电子电路，以便以高精度控制像素的亮度级。

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